Leap day: story quirky calendar event, Monday (feb. 29) is "leap day," an artifact that dates back to the year 46 b.c. find out how this calendar oddity came to be.. Century leap year - wikipedia, In the gregorian calendar, a year ending in "00" that is divisible by 400 is a century leap year, with the intercalation of february 29 yielding 366 days instead of 365.. Leap year rules - western washington university, There is a leap year every year whose number is perfectly divisible by four - except for years which are both divisible by 100 and not divisible by 400..

Julian date calendar - day year | vp calendar, Vp calendar unique day numbering scheme -leap years.. http://www.vpcalendar.net/Julian_Date.html Leap year - wikipedia, A leap year ( intercalary year bissextile year) calendar year additional day (, case lunisolar calendars, month. https://en.wikipedia.org/wiki/Leap_year The julian calendar - tondering, What julian calendar? julian calendar introduced julius caesar 45 bc. common late 1500s, countries started changing. http://www.tondering.dk/claus/cal/julian.php